From 01fae90b3d69acb94f76b51eb453037fdf36bbcc Mon Sep 17 00:00:00 2001
From: a73x <dev@a73x.sh>
Date: Sun, 25 Aug 2024 10:04:00 +0100
Subject: init

---
 Dockerfile    | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 entrypoint.sh | 12 ++++++++++++
 init-repo.sh  |  7 +++++++
 3 files changed, 65 insertions(+)
 create mode 100644 Dockerfile
 create mode 100644 entrypoint.sh
 create mode 100644 init-repo.sh

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..9667c52
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,46 @@
+# Use a base image with Git and OpenSSH installed
+FROM alpine:latest
+
+# Install necessary packages
+RUN apk add --no-cache git openssh
+
+# Create a directory for the Git repositories
+RUN mkdir -p /git-server/repos
+
+# Create a user for running the Git server with git-shell as the default shell
+RUN addgroup -S git && adduser -S git -G git -s /usr/bin/git-shell && echo "git:*" | chpasswd -e
+
+# Set the working directory
+WORKDIR /git-server
+
+# Create SSH directory, authorized_keys file, and set permissions
+RUN mkdir -p /home/git/.ssh \
+    && chmod 700 /home/git/.ssh \
+    && chown -R git:git /home/git/.ssh
+
+# Add your SSH public key and restrict to git-shell
+RUN echo 'command="/usr/local/bin/git-init-repo.sh %r",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPQgoZvm5U8SKkjZr03YcGdbMDvx2DxuSfXBYjyBJzrE' > /home/git/.ssh/authorized_keys \
+    && chmod 600 /home/git/.ssh/authorized_keys \
+    && chown -R git:git /home/git/.ssh
+
+# Disable password authentication to enforce SSH key-based access
+RUN echo "PasswordAuthentication no" >> /etc/ssh/sshd_config
+
+# Set MOTD
+
+run echo "Connection successful!" > /etc/motd
+
+# Expose SSH port
+EXPOSE 22
+
+COPY init-repo.sh /usr/local/bin/git-init-repo.sh 
+RUN chmod +x /usr/local/bin/git-init-repo.sh
+
+# Copy the entrypoint script
+COPY entrypoint.sh /entrypoint.sh
+
+# Make the entrypoint script executable
+RUN chmod +x /entrypoint.sh
+
+# Set the entrypoint
+ENTRYPOINT ["/bin/sh","/entrypoint.sh"]
diff --git a/entrypoint.sh b/entrypoint.sh
new file mode 100644
index 0000000..77ae84d
--- /dev/null
+++ b/entrypoint.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+if [ ! -f /etc/ssh/ssh_host_rsa_key ]; then
+    ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key -N ''
+    ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key -N ''
+    ssh-keygen -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key -N ''
+    ssh-keygen -t ed25519 -f /etc/ssh/ssh_host_ed25519_key -N ''
+fi
+
+
+
+# Start the SSH daemon
+/usr/sbin/sshd -D -e 2>&1
diff --git a/init-repo.sh b/init-repo.sh
new file mode 100644
index 0000000..29cab4e
--- /dev/null
+++ b/init-repo.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+REPO_DIR="/git-server/repos/$1"
+if [ ! -d "$REPO_DIR" ]; then
+    mkdir -p "$REPO_DIR"
+    cd "$REPO_DIR"
+    git init --bare
+fi
-- 
cgit v1.2.3